This reliquary is distinguished from all the others by its structures and predominantly Gothic lines. The base consists of a hexagonal section decorated with birds/dragons on its top. Above them six semicircular lobes emerge which converge at the centre, forming the stem; this is composed of three frames and a central knuckle, with lozenges in relief imitating the precious inset stones. The central body of the piece is formed by a showcase in glass, reinforced by three narrow bands of silver, containing in it, a relic of Saint Donatus, Martyr, Bishop of Arrezo in Italy, at the time of the Diocletian emperro, and who was arrested and incarcerated and decapitated in the year 361, when the emperro Julian ruled. Some of his relics reached Germany.
At the top of the reliquary there is a cupola, compartmentalised into six faces, whih worked edges.
The piece is finished in moulded Pinnacle, in Gothic style.